Eric is a full featured Python and Ruby editor and IDE, written in Python. It is based on the cross platform Qt GUI toolkit, integrating the highly flexible Scintilla editor control. It is designed to be usable as an everyday quick and dirty editor as well as being usable as a professional project management tool, integrating many advanced features that Python offers the professional coder. Eric includes a plug-in system, which allows easy extension of the IDE functionality with plug-ins downloadable from the net. Current stable versions are Eric4 based on Qt4 and Python 2 and Eric5 based on Python 3 and Qt4.
Clean Programming Language is a general purpose, state-of-the-art, pure and lazy functional programming language designed for making real-world applications. Its unique typing system makes it possible to incorporate destructive updates of arbitrary data structures (including arrays) in a pure functional language and to make direct interfaces to the outside imperative world.
Stunnix Advanced Web Server is a Web server for putting Web sites onto CD-ROMs, DVDs, FlashDisks, and other readonly media to be used on any typical system. Sites can be scripted with PHP, Python, Java, or Perl and can be driven by MySQL or SQLite databases. All required software programs are designed to reside on the CD-ROM to avoid the need to install software on the user's computer. The Web serving core is based on Apache 1.3.x, and has additional functionality to detect and use free ports and automatically start a browser on each platform. Desktop applications can also be created with it.
U++ is a C++ cross-platform rapid application development suite focused on programmers' productivity without sacrificing runtime performance. Based on strictly deterministic design, it provides a viable alternative to garbage-collected platforms, even for business logic oriented problems.
JGraph is a free, mature, and robust Java diagramming library. It contains all the graph visualization, layout, and interaction functionality you might expect in a graph library, including multiple views, layering, zoom, drag and drop, undo, automatic expanding and collapsing, routing, and layouts. You can create workflow editors, BPMN, CAD tools, network diagrams, database visualization tools, and more. It is fully documented, including examples, and has an active support community.